Method of making ophthalmic mountings



April 22, 1930. Lb. GAGNON 5 3 METHOD 05F MAKING OPHTHALMIC MOUNTINGS Original Filed April 15, 1926 5 Inthe drawing;

Patents Apr. 22, 193% M D" STATES PATENT- err-ice.

piano 0. GAeNoN, or: NEWARK, NEW JERSEY, ASSIGNOR, BY MEsNE ASSIGNMENTS, To CONTINENTAL OPTICAL MANUFACTURING COMPANY, or INDIANAPOLIS, INDIANA,

A CORPORATION OF INDIANA.

METHOD OF MAKING OYHTHALMIC MO'UNTINGS Original application niea 11 m 151 1926, Serial No. 102,162.v Divided and this application filed nine 11,

This invention relates to ophthalmic mountings, particularly spectacle frames consisting of zyloniteor. any other suitable, similar or equivalent material. The inven- 5 tion relates especially to improvements in the method of securing hinge or pivot members to the opposite ends of the lens holding part ends of the of the frame and to the front temple bars-of such frame. 10 It'is an object of the invention to provide a method involving simple and eflicient operations whereby metallic hinge or pivot members may be secured to the opposite ends of the lens holding element or part of the frame and to the front. ends of the temple bars in a manner such that a maximum of front end portion thereof with'the metal pivconcealment may be effected and also in a manner such that a maximum of strength may be obtained in the completed structure.

The invention comprehends the method which is of the character heretofore indicated but it will be understood that alterations or changes in the sequence of the steps .employed in carrying out or practising the methodmay be made Within the scope of the claims without departing from the principle involved in the invention.

a In order that the method constituting the invention may be readily and more clearly understood and its practical advantages fully appreciated, reference may be had to the accompanying drawing in which I have illustrated the steps involved in the carrying out of the said invention.

Fig. 1 is a view in rear elevation of approximately one-half portion of the lens holding element 40 lug thereof only partly completed;

section through a lens holding element or rim and a lug only partly completed as shown in Fig. 1;

Fig. 3 is a view in rear elevation of a metal pivot member adapted to be mounted in the said temple lug;

Fig. 4: is a view in horizontal transverse section taken'through the said lug and the adjoining portion of the lens holding rim or frame with the temple Fig. 2 is a view in horizontal transverse Serial No. 198,263.

after the mounting therein of the metal pivot member shown in Fig. 3;

Fig. 5 is a view similar to that shown in Fig. 4 but showing portions of the lug cut awayso as to expose. portions of the pivot member Fig. 6is a view in rear elevation of the 7 portion of the frame shown in Fig. 5;

.Fig. 7 isa longitudinal sectional view of the front end portion of a temple bar provided with ajsocket adapted to receive a metal" pivot member; 1 i

Fig. 8 is a viewof the front endof said bar- Fig. 9 is aview in inside elevation of the ot member mounted in the socket-provided therefor;

Fig. 110 is a view in side elevation ofthe portion shown in Fig. 8; v

- F'g. 11 is a view in side elevation of the front end portion of a temple bar showing the first st p in a modified method which may beem loyed in securing the metal hinge bar hinged to'the said ug, the said bar being shown in open position.

.Upon reference to the drawlng it will be noted that I'have illustrated approximately one-half portion only of the lens holding part of the frame for the purpose of illustrating the method employed by me in the securing of metal hinge or pivot members or elements to the opposite ends of; the lens holding 'part of the frame and to the forward or front ends of the temple bars thereof.

Exactly the same construction ofhingeconnection is employed at the opposite ends of the frame; hence in the description of the invention one end only of the frame or mounting will be referred to and the singular numher will be employed.

As already indicated, the mounting comprises zylonite or its equivalent.

In the carrying out of the method constituting my invention, the lens holding portion is first-produce .l comprising rims 1, only one of which is shown in the drawing, which portion is provided at its opposite ends with lugs or projections. As illustrated in Fig. 1, I have shown a lug 2 in process of formation to receive a metal hinge element to be inserted in a manner which will hereinafter be described. The lens holdin portion of the frame having been formed or produced as stated, the portion thereof including a lug 2- is heated in order to soften the same. Thereafter an opening is formed in the said lug extending from the outer end thereof inwardly, which opening terminates short of the inner side of the lens holding rim 1 as is clearly shown. The inner portion of the said opening is tapered as indicated at 3 and the outer end portion thereof is enlarged as indicated at 4, the greater portion of the said enlargement being provided upon the rear side of the said lug as indicated at 5. The opening in the lug 2 having been provided as indicated in Fig. 2 of the drawing, themetal hinge member 5 is then inserted. The said member comprises a flat tapered portion 5 the opposite edges of which are serrated or notched to form teeth 6 as shown and the outer, wider end thereof terminates in laterally extending projections forming pivot ears 7 which are provided withpivot holes 8 extending therethrough. The size of the portion?) of the opening in lug 2 is such that some force is required to insert the tapered portion 5 of the hinge or pivot member 5 thereinto. Preferably the hinge of pivot member should be heated before it is inserted into the opening in the lug 2 in order that the material of the lug may more readily adapt itself to the inserted portion. The ears.

7 of the hinge or pivot member 5 occupy the outer enlarged portion 4 of the opening in the lug 2 aswill be apparent from an inspection of Fig. 4 of the drawing.

After the metal hinge member 5 has been placed in position within the opening in the ug 2 and while the said lug is at a temperature to render the same more orless plastic, it is placed in a suitable press or die and pressed tightly about the said hinge 0r pivot member so as to flattenthe enlargement 8 at the front side of the lug 2, produced by the enlarging of the outer end of the opening therein, and cause the material of the said lug including the rear portion thereof at 5 to hug closely against the pivot member 5" as is clearly illustrated in Fig. 4 of the drawing. Itwill be seen that as a result of the compressive pressure to which the lug has been render the same more or less plastic.

subjected the front portion thereof has been rendered smooth by the elimination of the projection 8 and that the rearwardly projecting portion at 5 has been reduced in thickness and bent around the inner and rear edge portions of the ears 7. After the enlarged outer end portion of the lug 2 has been formed about the hinge or pivot member 5 as shown in Fig. 1, the outer end portions thereof are cut away so as to provide a shoulder 9 and so also as to bevel or taper the front portion of the lug as indicated at 10. It will be noted that as a result of the compression to which the said lug is subjected, a shoulder 11 is formed against the outer end of the portion 5 of the hinge or pivot member which conremoval of the said hinge member from the lug.

The material of the rear projecting portion 5 after compression as above described is cut away so as to expose the. rear edge portions of the ears 7 and to provide outer coverings 12 therefor, which coverings are of identically the same shape as the ears themselves. The material intermediate the said ears 12 is cut away in order that the pivot ear 13 of the hinge member 14 at the front end of the temple bar may be inserted into the space between the ear 7. j

The hinge member 14 comprises the tongue or prong portion 15 having projections or spurs 16 upon one edge thereof as shown and the pivot ear portion 13.

The said hinge member 14 is secured in the front end portion of the temple bar 17 in a manner similar to that in which the hinge or pivot member 5 is secured in the lug 2.

According to the method as illustrated in Figs. 7 to 10.inclusive the front end portion of the said temple bar is first heated to Thereafter an opening is formed therein which extends longitudinally thereof. The said opening comprises an inner reduced portion as indicated at 20 and an outer enlarged portion 7 1 portion of the temple bar. When the portion 15 of the hinge member 14 is inserted into the opening 20 it preferably is at a temperature to melt or soften the material of the bar so that it will flow into close engagement therewith and with the projections or spurs 16.. Thereafter the front end of the temple bar is placed in a. press or die and subjected to pressure to flatten the projection 23 and Y cause thematerial of the bar to hug closely against the hinge member. ortion of the material at the front end of t e mple bar is caused to extend partially around the circumference of the circular pivotIeye 13 and a;

shoulder'at 25 serves as an additional means to prevent the hinge member 14from being disconnected from 'the temple bar. Thereafter the front end of the temple bar is cut away-so as to form the surface 26 constituting a shoulder which is adapted to co-ac't with the shoulder 9 upon the temple lug of the lens holding part of the frame. Circular or are shaped depressions are formed upon the inner side of the temple bar upon opposite sides of the circular ear or pro ection 13, as

shown at 27 in which the ears 7 of the hinge o'r pivot member 5 are located when the temple bar is connected to the temple lug by a pivot pin 28. I

In Figs. 11, 12 and 13 of the dra-Wing'a somewhat different method of operation is em- "ployed for securing the pivot or him e member 14 in the front end of the temple ar.

. In the method employed in Figs. 11 to 13 of the 1 drawing a notch 30 of arcuate shape ispro- .vided in the inner side of the temple bar a short distance from the front end thereof. The front end portion of the temple bar is then heated so as to render the same more or less plastic, after which the forward end portion is bent away from the said notch as indicated at 31. A hole or opening 32 is formed by drilling or otherwise. in the forward end portion of the said bar.

The forward end of said hole terminates substantially at the bot tom of the notch 30. The hinge member 14 is then inserted into the opening 32 as indicated in Fig. 12,after. -which and while the front end portion of the temple bar is at a temperature such as to render the same pliable the outwardly bent forward end portion 31 is returned to more or less normal position in alinement with the main-body portion of the temple bar. The said forward end portion is placed in a die or press and subjected to pressure so as-to cause portions thereof to ext-end part wa around the circular hinge or pivot eye 13 an to form a shoulder in front of the front end of the portion 15 of the hinge or pivot member 14. Thereafter the front end portion of the temple bar is cut away so as to form the shoulder surface :26 and also so as to slightly ,taperor ,bevel'the outer side thereof as indicated at 33. It will be noted that the outer forward end portion of the temple bar shown in Fig. 10 is likewise tapered or bev- ,eled. The resulting construction of the temple bar is the same whether one method or the other as above described be employed.

It will be seen thatby my invention I am enabled to provide a spectacle frame comprising 'zyloni te or an equivalent material in which the metal, hinge orpivot members of'the construction are almostcompletely hidafter removing a portion of the material of den and wherebyalso a construction which is strong and rugged in character is produced.

By the term zylonite employed in the specification and claims I intend to refer to and include not only the material known generally as zylonite in this art but also celluloid or any other materialof a similar or a suitable character adapted for use in the manufacture of ophthalmic mountings.

The subject matter of this applicationis a division of the subject matter disclosed in my application for Letters Patent filed April I 15, 1926, Serial Number 102,162.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. The method of securing a hingemember within an end portion of a zylonite ophthalmic mounting, which comprises the formation of a longitudinally extending. opening therein with an expanded outer end and simultaneously forming op ositely disposed projections exteriorly of t e saidend portion,placing a hinge member in said opening, thereafter compressing the said outer end portion to flatten one of the said projections and cause the material of the said end portion to hug closely the said member, and

thereafter removing portions'of the material of saidend portion to form ears corresponding to and covering the outer sides of the hinge ears of said hinge member.

2. The method of securing a-hinge member within an end portion of a zylonite ophthalmic mounting, which comprises the formation of a longitudinally extending opening therein, expanding the outer end of said opening and forming oppositely disposed projections exteriorly of the-said end portion,

placingt a hinge member in said opening, therea er compressing the said outer end portion to flatten one of the said projections and cause the material of said end portion to hug closely the said hinge member, and thereafter remoying portions of the material of said end portion to form ears corresponding to .and overlying the outer sides of the hinge ears of the said hinge member.

7 3; The method of securing .a metal hinge member 'havinglaterally extending hinge Ill cars at its outer end within a temple lug at an .the front side of the said lug to cause the material of the said lug to hug closely against 7 all sides of the said hinge member, and therethe said lug at the outer end thereof and also a portion of the rearwardly extending projection to form ears overlying the outer. sides of: the said hinge ears and to expose portions of the peripheries of said ears.

4. The method of making articles of the class described which comprises the formation of a longitudinally extending opening in the forward end portion of a non-metallic member, inserting a hinge member in said opening, compressing the material of said member around the-said hinge member and thereafter removing portions of said material to expose peripheral portions of the ears formed upon the said hinge member.

5. The method of making articles of the class described which comprises the forma tion of an opening in the forward end por tion of a non-metallic member, inserting a heated metallic hinge member in said open- I ing, compressing the material of said member while rendered plastic by the heat of said, hinge member around the latter and.

around the forward end thereof, and thereafter removing portions of the material surrounding the ears formed on said hinge member to expose peripheral portions of the said ears.

6. The method of making articles of the class described which comprises forming a longitudinal opening with an expanded outer end in the forward end portion of a nonmetallic member, inserting a metallic hinge member in the said opening, thereafter compressing the material of the said non-metallic member to completely surround thesaid hinge member, and thereafter removing portions of the said material to expose peripheral portions of the ears of said hinge member and to permit a complementary hinge member to be engaged with the said cars.

7. The method of making articles of the class described which comprises the formation of an opening in the forward end P0137 tion of a non-metallic member, inserting a heated metallic hinge member in said opening, compressing the material of said member while rendered plastic by. the heat of said 7 hinge member around the latter, and thereafter removing portions of the material surrounding said hinge member to expose the peripheral said hinge member and to form ears corresponding to and covering the outer sides of the hinge ears of the said hinge member. 7

In testimony that I claim the foregoing as my invention, I have hereunto signed my name this 9th day of June, A. D., 1927.

' LEO O. GAGNON.

edges of the ears formed. on the 

